Zathura is a lightweight and fast document viewer, to be used mainly with the keyboard, with keyboard shortcuts similar to vim (text editor).
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Zathura is fast and can open a pdf file almost instantly.
Pro Vim bindings
You can browse files via keyboard, using keyboard commands similar to vim (text editor).
Pro Clean interface
Inferface is clean and shows only a small statusbar.
Pro Automatic document reloading
Zathura will automatically refresh the view when a document has been modified. (By contrast, Chrome requires a manual refresh and brings you back to the top of the document so that you have to scroll back down).